<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=9"/>
<title>Context Free LALR1 compiler: src/parserProgram/HistoryElement.java Source File</title>

<link href="tabs.css" rel="stylesheet" type="text/css"/>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<script type="text/javascript">
  $(document).ready(initResizable);
</script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/search.js"></script>
<script type="text/javascript">
  $(document).ready(function() { searchBox.OnSelectItem(0); });
</script>

</head>
<body>
<div id="top"><!-- do not remove this div! -->


<div id="titlearea">
<table cellspacing="0" cellpadding="0">
 <tbody>
 <tr style="height: 56px;">
  
  
  <td style="padding-left: 0.5em;">
   <div id="projectname">Context Free LALR1 compiler
   &#160;<span id="projectnumber">1.1</span>
   </div>
   
  </td>
  
  
  
 </tr>
 </tbody>
</table>
</div>

<!-- Generated by Doxygen 1.8.0 -->
<script type="text/javascript">
var searchBox = new SearchBox("searchBox", "search",false,'Search');
</script>
<script type="text/javascript" src="dynsections.js"></script>
  <div id="navrow1" class="tabs">
    <ul class="tablist">
      <li><a href="index.html"><span>Main&#160;Page</span></a></li>
      <li><a href="namespaces.html"><span>Packages</span></a></li>
      <li><a href="annotated.html"><span>Classes</span></a></li>
      <li class="current"><a href="files.html"><span>Files</span></a></li>
      <li>
        <div id="MSearchBox" class="MSearchBoxInactive">
        <span class="left">
          <img id="MSearchSelect" src="search/mag_sel.png"
               onmouseover="return searchBox.OnSearchSelectShow()"
               onmouseout="return searchBox.OnSearchSelectHide()"
               alt=""/>
          <input type="text" id="MSearchField" value="Search" accesskey="S"
               onfocus="searchBox.OnSearchFieldFocus(true)" 
               onblur="searchBox.OnSearchFieldFocus(false)" 
               onkeyup="searchBox.OnSearchFieldChange(event)"/>
          </span><span class="right">
            <a id="MSearchClose" href="javascript:searchBox.CloseResultsWindow()"><img id="MSearchCloseImg" border="0" src="search/close.png" alt=""/></a>
          </span>
        </div>
      </li>
    </ul>
  </div>
  <div id="navrow2" class="tabs2">
    <ul class="tablist">
      <li><a href="files.html"><span>File&#160;List</span></a></li>
    </ul>
  </div>
</div>
<div id="side-nav" class="ui-resizable side-nav-resizable">
  <div id="nav-tree">
    <div id="nav-tree-contents">
    </div>
  </div>
  <div id="splitbar" style="-moz-user-select:none;" 
       class="ui-resizable-handle">
  </div>
</div>
<script type="text/javascript">
  initNavTree('_history_element_8java.html','');
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
     onmouseover="return searchBox.OnSearchSelectShow()"
     onmouseout="return searchBox.OnSearchSelectHide()"
     onkeydown="return searchBox.OnSearchSelectKey(event)">
<a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(0)"><span class="SelectionMark">&#160;</span>All</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(1)"><span class="SelectionMark">&#160;</span>Classes</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(2)"><span class="SelectionMark">&#160;</span>Namespaces</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(3)"><span class="SelectionMark">&#160;</span>Functions</a><a class="SelectItem" href="javascript:void(0)" onclick="searchBox.OnSelectItem(4)"><span class="SelectionMark">&#160;</span>Variables</a></div>

<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<iframe src="javascript:void(0)" frameborder="0" 
        name="MSearchResults" id="MSearchResults">
</iframe>
</div>

<div class="header">
  <div class="headertitle">
<div class="title">src/parserProgram/HistoryElement.java</div>  </div>
</div><!--header-->
<div class="contents">
<div class="fragment"><pre class="fragment"><a name="l00001"></a>00001 <span class="keyword">package </span>parserProgram;
<a name="l00002"></a>00002 
<a name="l00003"></a>00003 
<a name="l00004"></a>00004 <span class="keyword">import</span> contextFree.grammar.Production;
<a name="l00005"></a>00005 
<a name="l00006"></a>00006 
<a name="l00011"></a><a class="code" href="classparser_program_1_1_history_element.html">00011</a> <span class="keyword">public</span> <span class="keyword">class </span><a class="code" href="classparser_program_1_1_history_element.html" title="This class represent an element of the parsing history.">HistoryElement</a> {
<a name="l00012"></a>00012         <span class="keyword">private</span> String[] stack;
<a name="l00013"></a>00013         <span class="keyword">private</span> <a class="code" href="classcontext_free_1_1grammar_1_1_production.html">Production</a> production;
<a name="l00014"></a>00014         <span class="keyword">private</span> String simbol;
<a name="l00015"></a>00015         
<a name="l00019"></a><a class="code" href="classparser_program_1_1_history_element.html#a45f360f314f688585844a62592bdb5c5">00019</a>         <span class="keyword">public</span> <a class="code" href="classparser_program_1_1_history_element.html#a45f360f314f688585844a62592bdb5c5" title="Default constructor.">HistoryElement</a>(){
<a name="l00020"></a>00020                 this.stack=null;
<a name="l00021"></a>00021                 this.simbol=null;
<a name="l00022"></a>00022                 this.production=null;
<a name="l00023"></a>00023         }
<a name="l00024"></a>00024 
<a name="l00029"></a><a class="code" href="classparser_program_1_1_history_element.html#ae6d3bdd3606301f0b08d4e9258b5c5cf">00029</a>         <span class="keyword">public</span> <a class="code" href="classparser_program_1_1_history_element.html#ae6d3bdd3606301f0b08d4e9258b5c5cf" title="Construct the object with specified parsing stack.">HistoryElement</a>(String[] stk) {
<a name="l00030"></a>00030                 this.stack= stk;
<a name="l00031"></a>00031                 this.simbol=null;
<a name="l00032"></a>00032                 this.production=null;
<a name="l00033"></a>00033         }
<a name="l00034"></a>00034         
<a name="l00041"></a><a class="code" href="classparser_program_1_1_history_element.html#a0cd8852d35a48856c6e893ae33cbde30">00041</a>         <span class="keyword">public</span> <a class="code" href="classparser_program_1_1_history_element.html#a0cd8852d35a48856c6e893ae33cbde30" title="Construct the object with specified parsing stack, production and step.">HistoryElement</a>(String[] stk,<a class="code" href="classcontext_free_1_1grammar_1_1_production.html">Production</a> p, String s) {
<a name="l00042"></a>00042                 this.stack= stk;
<a name="l00043"></a>00043                 this.production=p;
<a name="l00044"></a>00044                 this.simbol= s;
<a name="l00045"></a>00045         }       
<a name="l00046"></a>00046         
<a name="l00050"></a><a class="code" href="classparser_program_1_1_history_element.html#a8f20a699af1fa68f114acef0f72117b5">00050</a>         <span class="keyword">public</span> String[] <a class="code" href="classparser_program_1_1_history_element.html#a8f20a699af1fa68f114acef0f72117b5">getStack</a>() {
<a name="l00051"></a>00051                 <span class="keywordflow">return</span> stack;
<a name="l00052"></a>00052         }
<a name="l00053"></a>00053 
<a name="l00058"></a><a class="code" href="classparser_program_1_1_history_element.html#a640ecb265a57f1b084fe99cf2a2a9a35">00058</a>         <span class="keyword">public</span> <span class="keywordtype">void</span> <a class="code" href="classparser_program_1_1_history_element.html#a640ecb265a57f1b084fe99cf2a2a9a35" title="Set the stack.">setStack</a>(String[] stack) {
<a name="l00059"></a>00059                 this.stack = stack;
<a name="l00060"></a>00060         }
<a name="l00061"></a>00061 
<a name="l00065"></a><a class="code" href="classparser_program_1_1_history_element.html#a1e3354d1bc805c952c4ed9a35ddac0dd">00065</a>         <span class="keyword">public</span> <a class="code" href="classcontext_free_1_1grammar_1_1_production.html">Production</a> <a class="code" href="classparser_program_1_1_history_element.html#a1e3354d1bc805c952c4ed9a35ddac0dd">getProduction</a>() {
<a name="l00066"></a>00066                 <span class="keywordflow">return</span> production;
<a name="l00067"></a>00067         }
<a name="l00068"></a>00068 
<a name="l00073"></a><a class="code" href="classparser_program_1_1_history_element.html#a2311f48be369f4d0e6be47c2a7ac7546">00073</a>         <span class="keyword">public</span> <span class="keywordtype">void</span> <a class="code" href="classparser_program_1_1_history_element.html#a2311f48be369f4d0e6be47c2a7ac7546" title="Set the production.">setProduction</a>(<a class="code" href="classcontext_free_1_1grammar_1_1_production.html">Production</a> production) {
<a name="l00074"></a>00074                 this.production = production;
<a name="l00075"></a>00075         }
<a name="l00076"></a>00076 
<a name="l00080"></a><a class="code" href="classparser_program_1_1_history_element.html#ab64610fe65f58bca7d542244378ac030">00080</a>         <span class="keyword">public</span> String <a class="code" href="classparser_program_1_1_history_element.html#ab64610fe65f58bca7d542244378ac030">getSimbol</a>() {
<a name="l00081"></a>00081                 <span class="keywordflow">return</span> simbol;
<a name="l00082"></a>00082         }
<a name="l00083"></a>00083 
<a name="l00087"></a><a class="code" href="classparser_program_1_1_history_element.html#a54ecd254d7abd49d0d10230892dfc35b">00087</a>         <span class="keyword">public</span> <span class="keywordtype">void</span> <a class="code" href="classparser_program_1_1_history_element.html#a54ecd254d7abd49d0d10230892dfc35b" title="Set the parsing step.">setSimbol</a>(String simbol) {
<a name="l00088"></a>00088                 this.simbol = simbol;
<a name="l00089"></a>00089         }
<a name="l00090"></a>00090 
<a name="l00094"></a><a class="code" href="classparser_program_1_1_history_element.html#a233c9c55643f4d6bc8103c4e2c8bd038">00094</a>         <span class="keyword">public</span> <span class="keywordtype">boolean</span> <a class="code" href="classparser_program_1_1_history_element.html#a233c9c55643f4d6bc8103c4e2c8bd038">isShift</a>(){
<a name="l00095"></a>00095                 <span class="keywordflow">if</span>(production==null) <span class="keywordflow">return</span> <span class="keyword">true</span>;
<a name="l00096"></a>00096                 <span class="keywordflow">return</span> <span class="keyword">false</span>;
<a name="l00097"></a>00097         }
<a name="l00098"></a>00098         
<a name="l00099"></a>00099         
<a name="l00100"></a>00100         @Override
<a name="l00101"></a>00101         <span class="keyword">public</span> String toString(){
<a name="l00102"></a>00102                 String result= <span class="stringliteral">&quot;[ &quot;</span>;
<a name="l00103"></a>00103                         <span class="keywordflow">for</span>(String simbolo : this.stack){
<a name="l00104"></a>00104                                 result+=simbolo+<span class="stringliteral">&quot; &quot;</span>;
<a name="l00105"></a>00105                         }
<a name="l00106"></a>00106                         result+=<span class="stringliteral">&quot;]&quot;</span>;
<a name="l00107"></a>00107                 <span class="keywordflow">if</span>(production!=null) result+=<span class="stringliteral">&quot; | reduce for &quot;</span>+production.<a class="code" href="classcontext_free_1_1grammar_1_1_production.html#a43d78cd85446efbbffe59a2278c410d1" title="return a formatted string in the form axioms :: = expression">toString</a>() + <span class="stringliteral">&quot; | &quot;</span> + simbol;
<a name="l00108"></a>00108                 <span class="keywordflow">else</span> result+= <span class="stringliteral">&quot; | shift | &quot;</span> + simbol;
<a name="l00109"></a>00109                 <span class="keywordflow">return</span> result;
<a name="l00110"></a>00110         }       
<a name="l00111"></a>00111 }
</pre></div></div><!-- contents -->
</div>
  <div id="nav-path" class="navpath">
    <ul>
      <li class="navelem"><b>HistoryElement.java</b>      </li>

    <li class="footer">Generated on Fri Mar 30 2012 21:26:24 for Context Free LALR1 compiler by
    <a href="http://www.doxygen.org/index.html">
    <img class="footer" src="doxygen.png" alt="doxygen"/></a> 1.8.0 </li>
   </ul>
 </div>


</body>
</html>
